Method for assembling dies in marking machines



March 11, 1941.. c TILSQN 2,234,535

METHOD FOR ASSEMBLING DIES IN MARKING MACH'INES Filed Sept. 2:5; 1938 :sSheets-Sheet 1 1 mfentmr= I Claude D. Ti'lsorz, by MM Z-WMM A tag s.

C. D. TILSON March 11, 1941.

METHOD FOR ASSEMBLING DIES IN MARKING MACHINES Filed Sept. 23, 1938 3Sheets-Sheet 2 Imfenfmr: Zaude ,D. R'Zson March 11; 1941. Q Q TILSQN2,234,535

METHOD FOR ASSEMBLING DIESIN MARKING MACHINES Filed Sept. 23, 1938 3Sheets-Sheet 5 l m/cerczr:

Claude D. T115072 6 W& WW

Allis.

Patented Mar. 11, 1941 UNITED STATES PATENT OFFICE METHOD FORASSEMBLING. DIES IN MARKING MACHINES poration of New York ApplicationSeptember 23, 1938, Serial No. 231,385

1 Claim.

This invention relates to machines for marking shoe upper sections orsimilar pieces of sheet material.

In the manufacture of shoes, particularly womens shoes, it is customaryto apply ornamental designs to the shoe uppers, as by stitching,perforating or embossing. Present fashions demand that shoe uppers bemade of leather, textile fabrics such as silk, satin or velvet, andvarious other kinds of sheet material. Usually, the ornamental designsare applied to the cutout sections of the uppers before they areassembled in the shoe; and in the case of stitching, the designs arefirst marked on the shoe uppers and the marked designs are then followedin the stitching. In accordance with the customary practice, the designmay be impressed upon the shoe upper section, or similar article ofsheet material, by a marking plate, on which the desired pattern isformed by bosses punched from the material of the. plate and disposed inlines, rows or other arrangements to delineate the pattern. The markingplate may then be pressed against a transfer sheet having itspigmentedsurface disposed against the shoe upper section or other pieceof work to be marked, and the pattern displayed by the bosses will thenbe printed or impressed on the work. A similar method may be usedwithout the transfer sheet for merely embossing a piece of leather, inwhich case the marking plate will be embossed in accordance with thedesired design, or for perforating the work, in which case the markingplate will be made with bosses in the form of 35 cutting punches of suchshape and arrangement as, to cut'holes or perforations in the work,shaped and arranged according to the desired design.

Printing or marking,.perforating and embossing, whether used separatelyor in various combinations at the same time, are all included in theexpression marking as herein used; and the term marking plate is used todesignate the plate for applying the design to the work whether theplate is constructed for printing from a transfer sheet, or forperforating, or for embossing, or for any combination of theseoperations.

The principal objects of the present invention are to provide a markingmachine for carrying out the aforementioned operations, to provide meansfor securely holding a marking plate accurately in position with respectto the material to be marked, and to provide a marking machine which isof simple design and of strong and dur- (Cl. 10,13il1) ableconstruction, which is sufficient and reliable in operation and in whichmeans are provided for using interchangeable marking plates which may bereadily and accurately positioned.

Further objects relate to various features of 1 construction and will beapparent from a consideration of the following description andaccompanying drawings, wherein:

Fig. 1 is a top plan View, with parts broken away and shown in section,of a marking machine constructed in accordance with thepresentinvention;-

Fig. 2 is a side elevation of the machine shown in Fig. 1, but withcertain parts removed;

Fig. 3 is a top plan view of a marking plate adapted for use in themachine shown in Fig. 1:

Fig. 4 is an enlarged section on the line 4-4 of Fig. 3;

Fig; 5 is an enlarged section on the line 5-5 of Fig. l; and

Fig. 6 is a top plan view, on a reduced scale, of

one form of gauge plate for use in positioning right and left quarters.

The embodiment chosen for illustration comprises a base or bed It](Figs. 1 and 2) provided with a pair of spaced rearwardly extending armsH, the outer ends of which support a pair of links l2. A second pair oflinks I4 is pivotally connected to the opposite sides of the base Itadjacent to its rear edge, the links [2 and I4 being pivotally connectedat their upper ends with a marking plate carrier or platen,designated bythe numeral l5, and being effective atall times to support the platen I5for movement toward and away from the upper face of the base Ill and inparallel relation thereto.

The upper face of the base It supports a detachable gauge plate I! (Fig.6) comprising a relatively heavy piece of fiberboard or the likesuitable sheet material (Figs. 1, 2 and 6), which is provided with anelevated guide IB against which right and left shoe upper quarters arearranged, asindicated by the dot and dash lines of Fig. 1. fixedposition, its inner margins, adjacent to its rear corners, are formedWith apertures l9 which In order to hold the gauge plate ll in receivepositioning lugs 20 projecting upwardly from the rear of the base H], asshown in Fig. 2. The front end of the gauge plate is secured in fixedposition by a pair of clamps 2|, each of which is formed with a stem22extending downwardly through an aperture formed in the base ill, and acoil spring 23 iscircumposed about each stem so as yieldingly to urgethe clamps downwardly to grip the gauge plate H, as illustrated in Fig.2. In order to remove or replace the gauge plate it is merely necessaryto raise the clamps 2| and turn them aside, thereby permitting the frontend of the gauge plate to be moved toward or away from the base Ill.

The platen I5 is preferably of aluminum or the like relativelynon-magnetic material, and is formed with a pair of spaced elongateslots 30 (Fig. 2) at its forward portion, and a second pair of elongateslots 3| (Figs. 2 and 5) at its rear portion. A pair of electromagnets32 and 33 are rigidly secured to the platen by fastening elements orclamps 35. Each of the electromagnets comprises a U-shaped core or polepiece having a coil circumposed about each leg at a point spaced fromits end, the legs of the magnet 32 extending into the slots or openings30, and those of electromagnet 33 extending into the slots or openings3|. The ends of the cores are preferably perfectly fiat and are disposedin close proximity to the plane of the bottom surface of the platen l5,as illustrated in Fig. 5.

At each side of the electromagnet 30 there is provided a forwardlyextending bracket 38, each of which rotatably supports one end of ahandle 39 by means of which the platen l5 may be swung from inoperativeposition, as shown by the full lines of Fig. 2, to an operative positionrelative to the base l0, as indicated by the broken lines of Fig. 2. Theplaten I5 is normally maintained in elevated or -inoperative position bya tension spring 40, one end of which is secured to the lower pivot M ofone of the links l2, and its other end is secured to a pin or lug 42carried by one of the links M. A stop 43, projecting outwardly from thebase I0, is provided to limit the upward movement of the platen I5.

The particular machine here shown is designed to operate upon right andleft quarters simultaneously, and accordingly the gauge plate [1 isprovided with a guide member l8 shaped and arranged to position thequarters in a predetermined fixed-position so as to be operated on bythe marking devices presently to be described, it being understood thatif desired the construction and arrangement may be such as toaccommodate a different number of pieces and/or different shapes, suchfor example as Vamps. As here shown, the marking device comprises leftand right marking plates 50 and 5|, respectively (Fig. 5), each of whichconsists of a relatively thin piece of magnetic sheet material,preferably having the size and shape of the quarters to be marked andformed with marking projections or studs 52 (Figs. 3 and 4) delineatingthe marking or design to be applied.

- In preparing the machine for operation the marking plates 50 and 5|are first positioned on the gauge plate H with their studded sideslowerrnost, as indicated by the dot and dash lines of Fig. 1, and afterhaving connected the electromagnets with a suitable source of electriccurrent, the plate I5 is swung forwardly and downwardly into operativeposition, as indicated by the broken lines of Fig. 2, whereupon theelectromagnets are brought into position to pick up andifirmly hold themarking plates in fixed position against the underside of the platen 15,as illustrated in Fig. 5.

Where, as here shown, the marking plates operate in conjunction withapigmented transfer sheet, the latter is supported in operative relationto the marking plates, and to this end there is provided at one side ofthe platen l5 a pair of spaced brackets 55 (Figs. 1 and 5) which areformed with slots 56 (Fig. 5) provided open bearing members whichrotatably support a shaft or spindle 51 to which one end of a transferweb 58 is suitably fastened. At corresponding posi- 'tions on theopposite side of the platen 15 there is provided another pair of spacedbrackets 63 having slots 6| (Fig. 5) providing a second pair of openingbearings which rotatably support a shaft or spindle 62 to which theopposite end of the web 58 is suitably fastened. The brackets 55 and 60are formed with depending arms 64 (Figs. 2 and 5), the lower end ofwhich extends below the under surface of the platen l5, and adjacent totheir lower ends each pair of arms is formed with aligned openings whichprovide bearings for rotatably supporting guide rolls 65 and 66, theconstruction and arrangement being such that the web 58 is held inclosely spaced relation to the operating face of the marking plates, asillustrated in Fig. 5. One end of the transfer Web is wound up more orless upon one of the shafts 51 or 62, and its intermediate portionextends around the adjacent guide rolls, beneath the platen and thenceabout the other guide roll to the other shaft to which it is fastened.

In order to hold the shafts 51 and 62 against free rotation, there isprovided for each end of the shafts a spring finger or arm 68 (Fig. 1),the inner end of which is secured to the platen l5 preferably by asingle screw 69 or the like fastening element, which permits the springarm to be flexed upwardly and swung to one side. The outer or free endof each spring arm is preferably curved so as to engage the projectingend of the associated shaft, as shown in Figs. 1 and 5, thus providing afriction brake effective to prevent free rotation of the shafts. Withthis construction and arrangement the spring arms not only yieldinglyhold the shafts in position within the bearings, but also are effectiveto hold the web in adjusted position.

In order to adjust the web 58 so as to present fresh surfaces thereof tothe marking plates, the inner ends of the shafts 51 and B2 are providedwith hand wheels 'H and 12 (Fig. 1), by means of which the shafts may berotated. In order to remove or replace the shafts 51 and 62 togetherwith the transfer Web 58, it is merely necessary to flex the spring armsupwardly and swing them out of the way.

In using a machine constructed in accordance with the present invention,the marking plates are first attached to the platen as above described,and thereafter right and left quarters may be positioned against theguide member I8, as indicated by the dot and dash lines of Fig. 1, andby grasping the handle 39 the platen l5 may be swung downwardly, asindicated by the broken lines of Fig. 2, to mark the quarterssimultaneously. The marked quarters are then withdrawn and unmarkedquarters are substituted and the operation continued, it beingunderstood that the electromagnets 32 and 33 are effective firmly tohold the marking plates 50 and 5| in position during the markingoperation, notwithstanding the shocks to which these parts aresubjected. If it be desired to mark a different type of quarter, or anyother type of sheet material, the gauge plate I! and marking plates 50and 5| may be removed and others may then be substituted therefor in themanner previously explained.

While I have shown and described one desirable embodiment of theinvention, it is to be understood that this disclosure is for thepurpose of illustration and that various changes in shape,

proportion and arrangement of parts, as well as the substitution ofequivalent elements for those herein shown and described, may be madeWithout departing from the spirit and scope of the invention as setforth in the appended claim.

I claim:

The method of marking shoe upper elements and like materials in amachine of the type having stationary and movable members, includingmagnetic means on the movable member and gauge means on the stationarymember for positioning the element to be marked, which method comprisespositioning on the stationary member a marking plate of magneticmaterial having an edge portion conforming to that of the element to bemarked so that said edge portion is contiguous to the gauge means,actuating the movable member to bring it into operative relation withthe stationary member so that said magnetic means is brought intoposition to pick up and firmly hold said marking plate in fixed positionagainst the under side of said movable member, thereafter positioningthe element to be marked against said gauge means, and actuating themovable member so as to bring the marking plate into operativeengagement With said element, thereby accurately to apply markings tothe same.

CLAUDE D. TILSON.

